The 90131-0770 is a 20-circuit 2-row 2.54mm pitch C-Grid III? Vertical Header with gold-plated brass contacts and through hole termination. This 90131 series PCB header is made of polyester, suitable for signal and wire-to-board applications. The C-Grid III has been developed to meet the latest industry requirements. Headers will accept both discrete wire and ribbon cable connectors. C-Grid III box contact design employs the same mating concept with all termination techniques. A uniform locking system on all contacts allows full interchangeability inside different housing styles. C-Grid III is fully compatible with the industry standard DIN41651 as well as the French norm HE-13/14. Moreover, it is fully intermateable/interchangeable with Molex's QF-50 product range.